<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000357057
<NAME> Fidelity Massachusetts Municipal Trust
<SERIES>
<NUMBER> 31
<NAME> Spartan Massachusetts Municipal Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
jan-31-2001
<PERIOD-END>
jul-31-2000
<INVESTMENTS-AT-COST>
837,350
<INVESTMENTS-AT-VALUE>
837,350
<RECEIVABLES>
10,735
<ASSETS-OTHER>
36
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
848,121
<PAYABLE-FOR-SECURITIES>
2,007
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,702
<TOTAL-LIABILITIES>
3,709
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
844,422
<SHARES-COMMON-STOCK>
844,417
<SHARES-COMMON-PRIOR>
831,084
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(10)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
844,412
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
16,544
<OTHER-INCOME>
0
<EXPENSES-NET>
2,056
<NET-INVESTMENT-INCOME>
14,488
<REALIZED-GAINS-CURRENT>
(2)
<APPREC-INCREASE-CURRENT>
(1)
<NET-CHANGE-FROM-OPS>
14,485
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
14,488
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
461,822
<NUMBER-OF-SHARES-REDEEMED>
461,717
<SHARES-REINVESTED>
13,228
<NET-CHANGE-IN-ASSETS>
13,330
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(6)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,070
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
2,071
<AVERAGE-NET-ASSETS>
833,062
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.017
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.017
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
50
</TABLE>
